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/**
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* Settings that affect tests using mocha-webdriver. This module is imported by any run of mocha,
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* by being listed in package.json. (Keep in mind that it's imported by non-browser tests, such
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* as test/common, as well.)
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*/
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// This determines when a failed assertion shows a diff with details or
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// "expected [ Array(3) ] to deeply equal [ Array(3) ]".
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// Increase the threshold since the default (of 40 characters) is often too low.
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// You can override it using CHAI_TRUNCATE_THRESHOLD env var; 0 disables it.
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require('chai').config.truncateThreshold = process.env.CHAI_TRUNCATE_THRESHOLD ?
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parseFloat(process.env.CHAI_TRUNCATE_THRESHOLD) : 4000;
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// Set an explicit window size (if not set by an external variable), to ensure that manully-run
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// and Jenkins-run tests, headless or not, use a consistent size. (Not that height is still not
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// identical between regular and headless browsers.)
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//
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// The size is picked to be on the small size, to ensure we test issues caused by constrained
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// space (e.g. scrolling when needed). 1024x640 is a slight increase over 900x600 we used before.
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// Note that https://www.hobo-web.co.uk/best-screen-size/ lists 1366×768 as most common desktop
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// size, so it's reasonable to assume a browser that takes up most but not all of such a screen.
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if (!process.env.MOCHA_WEBDRIVER_WINSIZE) {
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process.env.MOCHA_WEBDRIVER_WINSIZE = "1024x640";
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}
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// Enable enhanced stacktraces by default. Disable by running with MOCHA_WEBDRIVER_STACKTRACES="".
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if (process.env.MOCHA_WEBDRIVER_STACKTRACES === undefined) {
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process.env.MOCHA_WEBDRIVER_STACKTRACES = "1";
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}
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// Default to chrome for mocha-webdriver testing. Override by setting SELENIUM_BROWSER, as usual.
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if (!process.env.SELENIUM_BROWSER) {
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process.env.SELENIUM_BROWSER = "chrome";
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}
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// Don't fail on mismatched Chrome versions. Disable with MOCHA_WEBDRIVER_IGNORE_CHROME_VERSION="".
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if (process.env.MOCHA_WEBDRIVER_IGNORE_CHROME_VERSION === undefined) {
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process.env.MOCHA_WEBDRIVER_IGNORE_CHROME_VERSION = "1";
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}
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// don't show "Chrome is controlled by..." banner since at time of writing it can
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// swallow early clicks on page reload.
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if (process.env.MOCHA_WEBDRIVER_NO_CONTROL_BANNER === undefined) {
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process.env.MOCHA_WEBDRIVER_NO_CONTROL_BANNER = "1";
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}
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// Detect whether there is an nbrowser test. If so,
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// set an environment variable that will be available
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// in individual processes if --parallel is enabled.
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for (const arg of process.argv) {
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if (arg.includes('/nbrowser/')) {
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process.env.MOCHA_WEBDRIVER = '1';
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}
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}
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// If --parallel is enabled, and we are in an individual
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// worker process, set up mochaHooks. Watch out: at the
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// time of writing, there's no way to have hooks run at the
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// start and end of the worker process.
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if (process.env.MOCHA_WORKER_ID !== undefined &&
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process.env.MOCHA_WEBDRIVER !== undefined) {
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const {getMochaHooks} = require('mocha-webdriver');
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exports.mochaHooks = getMochaHooks();
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}
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